Just upgraded to WordPress to version 2.8.6. Upgrading the blog engine nowadays is so easy. There are two buttons in the dashboard just for that when an upgrade is released. One button is to allow automatic upgrade while the other is for downloading the zipped files for manual upgrading. Most times, I just let it upgrade automatically without even bothering to backup my database and files. There is a risk of getting my files corrupted but I do a daily backup of the database. Should anything happen, I can easily restore using the backup file.